Gas-burner.



No. 875,218. PATENTED DBG. 31, 190'?. E. RUUD.

GAS BURNER.

APPLUATION FILED MAY 9,1907V FISE WIYHEESSES wlw narran strains ratifiant: cierren.

EDWIN RUUD, PITTSBURG,PENNSYLVANIA.

.GAS-BURNER.

simplify and economize the construction oi the appliance.

T he improvement claimed is hereinafter fully set forth.

ln the accompanying drawings: Figure 1 is a front view, in elevation, of a. gas burner illustrating an embodiment of my invention, a portion of the Wall of the discharge chamber being broken away to show the burner plate; Fig. 2, a Vertical section through Ithe same, on the line a a of Fig. 1'; Fig. 8, a front view of the upper portiony of the burner, with the cap plate removed; Fig. 4, a horizontal section, on the line b b of Fig. 2; and, Fig. 5, a similar section, on thevline c c of Fig. 2.

My invention is herein, as in Letters Patent No. 7 61,409 aforesaid, shown as applied in connection with a gas and air mixer of the, ordinary type, the same consisting'of a tubular body or shell, 1, which surrounds a supply passage, 2, for gas and air, and is lared or conically enlarged at its lower end, whichy is open for the reception of air, into which a gas supply pipe, B, projects for a short distance. 'The upper portion of the body, 1, opens directly into a laterally eX- tended or expanded discharge chamber, 1, which is preferably, as shown, of rectangular section', and is entirely open 'at its front, which is inclined relatively to the body, as shown in Fig. 2.

A burner plate, 4, which may be either of perforated metal or wire gauze, is fitted over thel inclined open front of the discharge chamber, and is held thereon by a cap plate, 5, which is of similar contour to the dischargev chamber and is ilanged on its edges which abut against the burner (plate, so as to be se arated therefrom by anintervening space w ich is deeper at top than at bottom and forming a narrow and Ielongated burneropning, as shown in Figs. 1,2 and 4.' The Specification of LettersTatent.' lApplication iled'May 9,1907. vBerial'blu. 372,809.

@5, adjacent to its top,

- is set -forth rs1-,sneed Jos; e1, 1907.

cap plateris secured removabl 'to theiidischarge chamber by bolts, 6, an nuts, 7.

A. plurality of vertical ribs or partitions, ."51, is cast on the pf-ier side 'of the cap plate, which extends' above -that of the'discharge` chamber, the spaces between said ribs' constituting a plurality of separate and'independent v'discharge channe s, 5e, said channels gradually increasing in cross-section and disposedthroughoutthe f width of fthe cap pllate, and lopenV at vea'ch of `their ends, throng i hich channls' the mixture ofgas and air issuingfromthe discharge chamber passes vto the atmosphere'. (See Figs; 3 and 4.) A curve'd'lip," 5 f, extends across. the top 'ofthe cap plate, "above the' 'discharge channels, 'projecting` .over the jointy between the discharge chamber, and burner plataand serves to preventthe access of Water to channels and joint. the formy and relation "ofthe ribs; 5d, 'and lip, 5f,'are such that the may be cast'integral i with the cap plate, without necessitating' the use of a core or 'of machine Wo'rk onthe latter after being cast.l l

,In operation', combustion of 'the mixture of gas and air which entersthedischarge ychamber, 18,'.through the supply passage-'2,

is maintained near "the, openings or perforations vin the upper portion of the burner plate, 4,'and the flame is thrown out, in a plurality 'of independent jets, through the discharge channels 5e. It has been found in practice that by the provision of inde endent channels, in lieu of the'single disc arge opening extending entirely across the cap plate which plate, is substantiallyeliminated. The location of the burner plate joint below the lip, 5f, of the cap plate, enables the rear guard plate of said patent 4to be dispensed'f. with, and correspondingly reduces the cost of. casting said plate.

I claim as my invention'and desire to seL cureby Letters Patent: v

1. The combination, with a gas and air mixing chamber, of ,an expanded discharge chamber open directly'to the mixing chamber 'and having an'fopen front, a foraminous burner plate extending across thefront of Asaid discharge-chamber, a cap plate secured to the discharge chamber in front of the t burner plate andforming therewith an clon-3. eted'sefrwjbwerppenina @id ver plete 4' ci y.

" It will' be lobservedthat in Patent No. 761,409, the ria-- l bility of the mixture to burn'down into the space within the cap plate and on the burner having formed on its inner side aplnrality'of independent discharge channelsl separate and l at and near its top and leading to the outer lend of the burner opening.

2 Th combination, with a gas and air mixing hambcr, of an expanded discharge chamber open directly to the mixing cham.

ber and having an open front, a fo'raminous burnerplate extending across the front of said discharge chamber, ay cap plate 'secured to the discharge chamber in front of the l'burner plate and forming therewith an elonburner openin said discharge chamber,

' `gated narrow burner openin yso glated ynarrow burner opening, said cap plate aving a lip at its top which projects over the burner opening an the joint vbetween the discharge chamber and burner plate and prevents access `oi water to theiilS'deofA the The com mation, with a gas and fair mixing chamber, of-an expanded discharge chamber open ber and having an open y front, a foraminous vburner plate extending across the frontjof a cap plate: secured vto ythe discharge chamber infront ofthe burner plate and forming therewith fan elonsaid cap plate having a lip at its -top whic projects over the burner opening and the j-oint between the discharge chamber and burner plate, said cap plate provided with a plurality of separate and indep ndent discharge channels `between said lip and the burner plate and'extending i to the outer edge oiburner opening;

Y mixing chamber, of an expandeddischarge "4. The combination, with'a-.gas'and air chamber opening directly tothe mixing chamber and. having an open l nections by W directly to thekmixing cham-` lfrom its inner -face of the front, a foramifr'c l aziendei nous burner plate extending across 'the lfront` late coveramber and of said discharge chamber,l a cap ing the front' of said discharge c separated therefrom by an intervening space and forming therewith an elongated narrow burner opening, said plate having a plurality of, separated ribs or projections extendin from its inner Ifacev to the burnerplate at and near the top thereof, means projectin over and shieldin" the. burner opening an conich the burner plate is clamped in position between the discharge chamber and the ribs of' the ca'p plate;

5, The combination, with a gas and air m-lxmg chamber,-

inclined correspndinglywith the front of said discharge chamber,4 a cap plate cover- 4ing the'front of said discharge chamber, and I separated therefrom by an intervening space of an expanded discharge chamber open directly to thev mixing charn-v ber'and havingan inclined open front, a foraminous .burner plate extending across and,

and forming therewith an elongated narrow burner opening, said plate having a pluralityl of separated ribs orv partitions extending face to the burner plate and-a lip at its top .between the whichI projects over ther'joi'nt burnerplate and the inclined D 

